Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability
CVE-2023-20051

5.8MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Asr 5000 Series Software
Vendor
CVE Published:
5 April 2023

Badges

👾 Exploit Exists

What is CVE-2023-20051?

A vulnerability in the Vector Packet Processor (VPP) of Cisco Packet Data Network Gateway (PGW) could allow an unauthenticated, remote attacker to stop ICMP traffic from being processed over an IPsec connection. This vulnerability is due to the VPP improperly handling a malformed packet. An attacker could exploit this vulnerability by sending a malformed Encapsulating Security Payload (ESP) packet over an IPsec connection. A successful exploit could allow the attacker to stop ICMP traffic over an IPsec connection and cause a denial of service (DoS).

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Affected Version(s)

Cisco ASR 5000 Series Software

References

https://sec.cloudapps.cisco.com/security/center/content/C...
vendor-advisory

CVSS V3.1

Score:
5.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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